diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 922086105b4..1b91ca0dc1e 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -55,7 +55,7 @@ static struct scsi_transport_template *iscsi_sw_tcp_scsi_transport;
 static struct scsi_host_template iscsi_sw_tcp_sht;
 static struct iscsi_transport iscsi_sw_tcp_transport;
 
-static unsigned int iscsi_max_lun = 512;
+static unsigned int iscsi_max_lun = ~0;
 module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
 
 static int iscsi_sw_tcp_dbg;